Perforator.



W. FLETT.

PBRFORATOR.

APPLICATION FILED SEPT. 9, 190s.

Patented July 13, 1909.

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WILLIAM FLF/lT, OF HYDE PARK, MASSACHUSETTS.

PERFORATOR.

T 0 all 'whom it may concern:

Be it known that I, WILLIAM FLETT, a citizen of the United States, residing at I'Iyde Park, Massachusetts, have invented certain new and useful Improvements in Perforators, of which the following is a specification.

This invention relates to periorators and particularly to a rotary periorator 'for weakening the line of detachment in sheets or strips of coupons as in mileage, railroad tickets, and the like.

In devices of this sort in which a long strip of printed coupons is to be perforated at given intervals, it is necessary that the utmost nicety of regulation and adjustment be afforded, as the slightest error in the spacing of the perforating knives or in the peripheral measure will be multiplied and rendered cumulative until at the end of say a thousand coupons the perforation would be entirely misplaced and the ticket ruined.

To the end of making such perforating accurate and dependable, I have devised my present invention, in which I have devised certain adjustments by which the regulation of the perforator may be full and complete, and the adjustment and setting ol" the blades made positive, easy and accurate. This I accomplish by the arrangement and formation of the parts and by certain means for moving them as desired.

In the specification and drawings, which form a part thereof, I have set vforth a rotary perforator adapted to be used with a rotary printing press in the production ol2 tickets, mileage, and the like. This perforator is an embodiment of my invention and is set forth herein as illustrative of the principles thereof, and as showing a form which I esteem as admirably adapted for the purpose specified.

Throughout the specification and drawings like reference numerals indicate corresponding parts, and in the drawings, Figure l is a cross sectional view of my periorator. Fig. 2 is a longitudinal section on the line 22 Fig. 1. Fig. 3 is a view of the perlorator in elevation. Fig. 4 is an end view ol the spacer controlling collar. Fig. 5 a central section thereof. Fig. 6 a central section of the periorator blade controlling collar. Fig.

Specification of Letters Patent.

Application filed September 9, 1908.

Patented July 13, 1909.

Serial No. 452,315.

7 the controlling collar for the spacers, and Fig. 8 the controllingl collar for the blades.

l is a shait to be intermittently operated in connection with a press. 2 is a tapered barrel on said sha it, the shaft being threaded for a short distance adjacent to each end ol said barrel. 8 are perforator blades disposed radially about said barrel, said blades having a straight outer edge 3 serrated to make a perforated cut, and having its inner edge 3L inclined at an angle to the edge 3, said angle of inclination corresponding to the angle of inclination ol said tapered barrel 2. The ends Si* of the blades 3 are beveled down toward the sha'lt, and said blades are slightly longer than the barrel 2, so that the lower edge of said bevel is clear of the end of the barrel on which the blades 3 and spacers a are arranged.

The spacers 4l are slightly wedged shaped in cross section, so as to make a tight iit between the thin perlorator blades, which will set radially on the barrel. The ends ot the spacers are beveled down at Ll toward the barrel 2, but are slightly less in length at this point than the perl'orator blades, so that the outer portion o'l the end oi the perlorator blade is exposed beyond the ends of 'the spacers. The inner portion olE the spacer end, however', is formed as an extended. step 42, so that the inner portion ol the end of the spacer' projects beyond the inner end olt the perforator blade. This extended end ol the spacer is beveled similarly to the other parts.

On the threaded portion of the shalt l is a threaded collar 5 screwed on to said shalt, and moved thereon by a spanner which engages the sockets 5. On its inner lace, the spacer lock is channeled out at G to receive the extension 7 of a ring 8, which has a bev eled face 9 adapted to bear against the bev eled end of the extension fl2 of the spacers 4. The outer surl'ace ol the collar 5 which lorms the lock for the spacers is threaded, and on this is screwed a second collar 10 which acts as a lock 'for the blades. This collar has sockets lO, and is channeled en its inner end at l()2 for the reception of an extension 1l ol a ring 12, which has a beveled -lace 13 adapted to co-act with the beveled ends of the perfor-atei' blades.

rlhe operation of my device is as follows: The shaft l being held in a vertical position with the spacer lool; 5, blade loch l0, and their respective rings in place, the blades and spacers are alternately laid in place against the barrel 2, being temporarily held by hand, or by a rubber band sprung over them. As soon as the blades and spacers are properly built up about the barrel 2, the rings S and l2 are dropped on over the end oi the shalt 1, and the spacer lool; 5, with the blade lock 10, screwed on its outer surface, are run down on the threaded portion oi shalt 1, adjacent to the barrel 2 until they rest upon rings S and 12. The blades and spacers will now be held upon the barrel, and the shaft may be held in any position without danger or the parts becoming misplaced. ln order to adjust the parts, l iirst position the blade and spacer locks at one end of my device, so that the inclined inner edges ol the blades 3 being moved on the incline of the barrel 2 will be radially distended to the proper diameter, and so that the spacers will be properly positioned between the blades to give the proper amount ot separation between the edges tor the size ot the coupon desired. he blade and spacer locks in the other end having been turned up, the perforator may now be tested by ruiming through a strip oi the desired length. 1t' it be found that in the run the perforations have become misplaced, the perforator blades may be slightly withdrawn to reduce, or slightly expanded to increase the diameter ot' the periforator, by simply moving the blade locks 10 on the spacer locirs 5, either in one direction or the other. l'he adjustment of the peiiiorator blades may, therefore, be accomplished without disturbing the iitting oi the spacers, and in this manner the pei'l'orator may be quickly adjusted with the utmost degree of nicety, so that at the end of even a thousand coupons, the line of the pertorations will 'lf-all exactly on the proper line ol division which is to separate the last coupon.

Various modifications may obviously be made in the details of my perlfoi'ator, in the form of the blades and spacers, and in the means for securing their adjustment, all without departing from the spirit oi my invention.

What l therefore claim and desire to secure by Letters Patent is,

l. A perforator comprising a rotatable barrel having a tapered portion and a threaded cylindrical portion at each end thereof, a plurality of radially disposed blades each having its outer edge formed to be parallel with the axis ci the core, and its inner edge inclined thereto at an angle corresponding to the tapered portion of said barrel, wedge shaped spacer blocks having similarly inclined inner edges iitting between said blades, said blades and said spacers each having a portion of senses their ends beveled and exposed, collars on each end of said core, and having beveled laces adapted to contact with the exposed ends, said collars being independently movable to adjust either said blades or said spacers.

2. A perforator comprising a rotatable barrel having a tapered portion and a threaded cylindrical portion at each end thereof, a plurality el radially disposed blades each having its outer edge Iformed straight and its inner edge inclined thereto at an angle corresponding to the tapered portion of said barrel, Wedge shaped spacers having similarly inclined inner edges iitting between said blades, said blades and said spacers each having a portion oi their ends beveled and exposed, a collar threaded on each end of said core, a loose ring carried by said collar and having a beveled face adapted to contact with the exposed ends of the spacers, and a collar threaded on each of said first named collars and provided with a loose ring having a bevel face adapted to contact with the end oi' said blades,

3. A perlorator comprising a rotatable bai'- rel having a tapered portion, a plurality of radially disposed blades each having its inner edge inclined at an angle corresponding to the tapered portion ol said barrel, wedge shaped spacers having similarly inclined inner edges iitting between said blades, said blades and said spacers each having a portion oi their ends exposed, and means for independently moving said blades and said spacers longitudinally on said core.

t. A perlorator comprising a rotatable barrel having a tapered portion, a plurality of radially disposed blades each having its inner edge inclined at an angle corresponding to the tapered portion oi said barrel, wedge shaped spacers fitting between said blades, and means ier independently moving said blades and said spacers.

5. A perlorator comprising a rotatable bairel having a tapered portion, a plurality of radially disposed blades each having its inner edge inclined at an angle corresponding to the tapered portion of said barrel, wedge shaped spacers having similarly inclined innei edges litting between said blades, said blades and said spacers each having a portion of their ends exposed, and collars threaded on each end of said core, and having faces adapted to contact with the exposed ends, said collars being independently movable to adjust either said blades or said spacers.

6. A periorator comprising a rotatable barrel, having inclined bearings on its surface, a plurality of radially disposed blades, wedge shaped spacers between thc blades having laces inclined to correspond with said bear-V ings, and means to move said spacer locks longitudinally on their bearings to adjust the blades.

7. A perforator comprising a rotatable barrel, having inclined bearings on its surface, a 'plurality of radially disposed blades, wedge shaped spacers between the blades having '5 faces inclined to correspond with said bearings, said blades and said spacer locks each having a portion of their ends exposed, and collars threaded on each end of said core, and having faces adapted to contact with the eX- posed ends, said collars being indelpendently l0 movable to adjust either said blac es or said spacers.

In testimony whereof, l affix my signature in presence of two witnesses.

WILLIAM FLETT. Witnesses A. B. BALKAM, A. G. FLETT. 

